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I set up qemu to use the tuntap network mode but I don see any /dev/tun0 or /dev/net/tun0! What happened?

April 26, 2017dev happened mode NET Network QEMU tun0 tuntap

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I set up qemu to use the tuntap network mode but I don see any /dev/tun0 or /dev/net/tun0! What happened?

1 Answer

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Um… it will be in “ifconfig -a”. There is no /dev/eth0 under linux, the same applies for tun0. Futhermode, tun0 or tap0 will not exist unless qemu is actually running – when qemu finishes running, it removes the devices on its own (technically it is the kernel which removes any unused tuntap devices).